Hibschite and Grandidierite Physical Properties

Hibschite

Grandidierite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.05-3.082.85-3.00

1 7.18

1.8 Fracture

Uneven, Uneven, Irregular, Management Team (2012), Conchoidal, Brittle

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

1.9 Cleavage

None

Perfect

1.10 Mohs Hardness

6.57.5

2 10

1.11 Chemical Composition

Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Hibschite and Grandidierite Chemical Formula

While comparing Hibschite and Grandidierite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Hibschite and Grandidierite chemical formula.

Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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Hibschite and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hibschite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibschite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Hibschite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.